Many people are wired to seek and respond to rewards. Your brain interprets food as rewarding when you are hungry and water as rewarding when you are thirsty.
But addictive substances like alcohol and drugs of abuse can overwhelm the natural reward pathways in your brain, resulting in intolerable cravings and reduced impulse control.
A popular misconception is that addiction is a result of low willpower. But an explosion of knowledge and technology in the field of molecular genetics has changed our basic understanding of addiction drastically over the past decade. The general consensus among scientists and health care professionals is that there is a strong neurobiological and genetic basis for addiction.
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